Reference values for selected ophthalmic diagnostic tests in two species of microchiroptera bats (Artibeus lituratus and Anoura caudifer).

Abstract

To establish reference values for ophthalmic tests in two bat species. BATS: Fourteen bats including seven great fruit-eating bats (Artibeus lituratus) and seven tailed tailless bats (Anoura caudifer). Normal values for following ophthalmic tests were investigated as follows: (a) aqueous tear production using the standardized endodontic paper point tear test (EPPTT), (b) rebound tonometry, and (c) horizontal palpebral fissure length. Aqueous tear production was 2.53±1.65mm/min for Alituratus and 1.89±0.62 for Acaudifer. Intraocular pressure measured in the upright position was 11.0±3.28mmHg for Alituratus and 7.28±2.70 for Acaudifer. Horizontal palpebral fissure length was 5.04±0.45mm for Alituratus and 3.92±0.51 for Acaudifer. The data obtained in the present study may serve as a reference for ophthalmic parameters and help practitioners in the diagnosis and management of eye diseases in bats, as well for future investigations about microchiroptera bats.